baber/WOPTO huggingface dataset:
Patent GB-993657-A (GB)
Title: Improvements in or relating to circuit arrangements for the automatic gain control of superheterodyne receivers
IPC: H03G3/22
Filed: 1964-03-26
Abstract: 993,657. Automatic gain control. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 26, 1964 [March 29, 1963], No. 12844/64. Heading H3Q. In a radio receiver in which A.G.C. is applied to an I.F. amplifier and also via a delay circuit to an RF or mixed stage, the output circuit of the latter includes a resistor, the D.C. voltage across which is applied to an electrode of the I.F. amplifier in such a manner that the screen grid to cathode voltage of the latter increases when the input to the receiver increases, thereby reducing the danger of cross-modulation occurring in the I.F. amplifier when strong signals are received. As applied to a receiver comprising a cascode R.F. stage 1, 2, mixer and first I.F. stages 7, 8 respectively and a final I.F. amplifier 9, the screen grid of the latter is returned via resistor 24 to the lower end of resistor 22 in the anode circuit of the upper cascode valve 2; capacitor 26 provides decoupling for R.F. An A.G.C. voltage from line 11 is applied direct to I.F. stages 8, 9 over resistors 15, 14 respectively and to R.F. stage 1, 2 over resistor 19 and delay diode 20, the anode of which obtains a positive bias via resistor 21. The screen grid of the first I.F. stage 8 may similarly be returned to the lower end of resistor 22, via resistor 33. An increased variation in the screen-grid to cathode voltage of the valve 9 may be obtained by returning either its cathode or the lower end of resistor 35 to the cathode of the valve 1; in a modification of the invention this is used alone, the resistor 24 then being returned to the line +Vb and resistor 22 omitted.
Patent GB-728999-A (GB)
Title: Improvements in or relating to cathode-ray tubes and to methods employed in manufacturing such tubes
IPC: H01J29/92
Filed: 1953-05-11
Abstract: 728,999. Caps for thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 11, 1953 [May 14, 1952], No. 13072/53. Class 38 (1). [Also in Group XL (a)] In a cathode-ray tube comprising a dished or flanged glass window 2 sealed to a glass cone 1 which has an inner conductive coating 6, this coating connects to an external terminal 4 which is secured to a metal strip 3 of U-section embedded in the seal between window and cone. The strip may be of ferrochrome, with a press-stud shaped terminal 4 welded to it.
Patent GB-1262398-A (GB)
Title: Improvements in or relating to high frequency welding machines
IPC: B29C65/04
Filed: 1970-03-18
Abstract: 1,262,398. Seaming non-metallic sheet material. G. M. PFAFF A.G. 18 March, 1970 [19 March, 1969], No. 13112/70. Heading B5K. A high-frequency electrical generator 1 may be connected, selectively, by a change-over switch 8 to either one of two high-frequency welding devices. As shown, the generator 1 is connected, through the interposition of an impedance matching device 6, to a stationary high-frequency welding machine having a displaceable welding tool 4 and a work-table 5. By actuating the switch 8, the generator 1 can be connected to a hand welding device 7 comprising electrodes 11, 12.
Patent GB-1503114-A (GB)
Title: Games and apparatus therefor
IPC: A63F3/06
Filed: 1977-03-31
Abstract: 1503114 Bingo-dart game W BRANTHWAITE J H HEAD and G W C POTTER 31 March 1977 [31 March 1976 11 May 1976] 13113/76 and 19442/76 Heading A6H A dartboard has ninety separate numbered areas for playing bingo. The numbers can be separate from the board itself.  As numbers are indicated by thrown darts, appropriate discs are removed from a board 3 and pegs inserted in apertured numbered bingo boards. Each player has such a board replaceably contained in a transparently-lidded box. The rear face of the dart board can carry a face divided into ninety sectors.
Patent GB-794080-A (GB)
Title: Etching machine
IPC: C23F1/08
Filed: 1956-04-30
Abstract: 794,080. Etching. POWERS CHEMO, Inc. April 30, 1956 [Aug. 3, 1955], No. 13138/56. Class 100(2) An etching machine in which acid is sprayed against a plate to be etched comprises a plate support rotatably mounted on a reciprocable carriage, the latter carrying a pinion meshing with a rack mounted on the machine, so that reciprocation of the carriage causes rotation of the plate support, and means to vary the effective longitudinal position of the rack so that the angular position of the support means relative to its linear position varies with each reciprocation of the carriage. The plate 14, Fig. 5, to be etched is secured by clamps 81 to a support 78 carried on a shaft 61, Figs. 1 and 5, rotatable in a carriage 21 reciprocable on 'rods 22, 24 mounted on a frame 20 on a portion 108 of the cover or wall of an acid container 10 having means for spraying the acid upward against the plate, so that the plate is within the container but can be removed therefrom by raising the portion 108 about hinges 110. Baffles 82, 82<SP>1</SP>, 85 prevent acid passing out of the container. The carriage is reciprocated within limits set by stops 60, so as to move the shaft 61 along slots 74 in the container 10 and the frame 20, by a motor 42 which through a speed reducer 44 rotates continuously a sector gear 48 on a shaft 46, Figs. 1, 3 and 5, to cause the gear to engage alternately racks 50, 52 on the carriages. A rack in the form of a worm 86 mounted on the frame engages a pinion in the form of a worm wheel 88 on a shaft 62 in the carriage, the shafts 61, 62 being coupled by gears 92, 90, so that reciprocation of the carriage causes rotation of the shaft 61 and plate 14. The motor 42 also rotates slowly the worm 86 through a belt 102, shaft 94, worm 104 and worm wheel 106, whereby the angular position of the plate relative to its linear position varies at each reciprocation, to produce an irregular pattern of movement of the plate. The shaft 61 is coupled by bevel gears 126, 124 to a lateral shaft 122 carrying a pointer 128, which thereby by its position with respect to indicia on a dial 112 indicates the angular position of the plate, which in some cases prevents in certain angular positions the raising of the cover portion 108.
Patent GB-757137-A (GB)
Title: New adrenochrome derivative and process for its production
IPC: C07D401/12
Filed: 1954-05-05
Abstract: The invention comprises the isonicotinyl hydrazone of adrenochrome, having the formula <FORM:0757137/IV(a)/1> The compound is prepared by reacting adrenochrome with isonicotinyl hydrazide in solution in an aqueous organic solvent, e.g. a lower aliphatic alcohol, preferably at room temperature. Specification 757,155, [Group VI], is referred to.ALSO:The haemostatic properties of isonicotinyl hydrazone of adrenochrome are improved by using it in the form of a complex or other combination with the non-toxic water-soluble salts such as the sodium salt of 3-hydroxy-2-naphthoric acid as described in Specification 757,155.
Patent GB-514486-A (GB)
Title: Improvements in or relating to wireless receiving circuits
IPC: H03G3/22
Filed: 1938-05-03
Abstract: 514,486. Valve circuits for wireless reception. PHILCO RADIO & TELEVISION CORPORATION. May 3, 1938, No. 13155. Convention date, May 8, 1937. [Classes 40 (iii) and 40 (v)] In a wireless receiver the transformer preceding the detector comprises tuned primary and secondary windings one rectifier, which may be for automatic - volume control, being fed from the primary winding and a second rectifier, which may be the signal detector, being fed from the secondary winding and a capacitive coupling between the .primary and secondary windings to reduce fortuitous coupling between thecircuits. The Figure shows an arrangement in which fortuitous capacity C5, made up of the capacity between the diode anodes and the wiring, is neutralised by a capacity C6 the intermediate points in the windings P, S being earthed. The detector D comprises a double diode triode and provides delayed automatic volume control and the amplifier stage following the signal detector, as well as serving as the signal detector.
Patent GB-552457-A (GB)
Title: Improvements in or relating to apparatus for separating dust and like impurities from air and gases
IPC: B01D50/00
Filed: 1941-10-14
Abstract: 552,457. Filtering gases. ADAMS, G. Oct. 14, 1941, No. 13190. [Class 8 (ii)] [Also in Group XII] A filter for air or gases comprises a series of cylindrical brushes 19, Fig. 2, disposed round an axis 22; the air passes round and through the filter into a stationary filter cylinder 33 which may have rings of activated carbon, wire mesh, or metal baffle plates and through a final filter 36 to the outlet. The air is delivered to an annular space round the filter 19 by a fan 12, and the bottom of this space may contain water stirred by paddles acted on by the air flow and supporting holes 32 which increase the active surface and also supporting a float 23 supporting the filter drum either directly or through a thrust bearing. The drum may be rotated by the air flow acting on bent baffles separating the brushes and helical arms supporting the drum frame from its spindle 22. This spindle may be hollow and perforated to spray water, supplied under pressure, on to the brushes. A damper may be provided at the inlet to the space round the filter to vary the level of water at which an overload cut-out for the motor driving the fan operates. Fig. 6 shows a modification in which the brushes 19 are mounted horizontally, the air passing first through the annular space round an imperforate cylindrical fixed partition 46 supporting helical vanes 45, then through the filter and finally inwards through a second, fixed, filter 33 to the outlet. A subsidiary rotatable brush 29 is provided in each form of apparatus ; this may be replaced by paddles. A spray nozzle 51 for the binding 19 and a water bath are provided. The brush cylinders 19 may be stationary, with interlocking bristles and helical supports giving a whirling motion to the air. The rotating cylinders 19 &c. may be driven from an external source.
Patent GB-593253-A (GB)
Title: Improvements in and relating to the purification of combustible gas containing organic sulphur compounds and free oxygen
IPC: C10K1/20
Filed: 1945-05-28
Abstract: 593,253. Gas-purifying processes. HOLMES & CO., Ltd., W.C., COOPER, C., and PRIESTLEY, J. J. May 28, 1945, No. 13258. ' [Class 55 (ii)] Coal gas &c. containing organic sulphur compounds and a small amount of oxygen after removal of hydrogen sulphide passes through. an iron oxide purifier 4 (or 5), a catalytic purifier 2 of a type described in Specifications 567,273 and 583,124, [Group III], and an ironoxide purifier 5 (or 4) the iron oxide purifiers being interchangeable. The catalytic purifier absorbs the oxygen of the incoming gas and converts the organic sulphur compounds to hydrogen sulphide which in turn is absorbed by the iron oxide purifier following the catalytic purifier. When either iron oxide purifier has been slightly fouled by use in the position following the catalytic purifier it is revivified by the oxygen content of the untreated gas when purifiers 4, 5 are interchanged.
Patent GB-992856-A (GB)
Title: An assembly of blanks for use in the raising and transplanting of seedlings
IPC: B31D3/02
Filed: 1962-04-06
Abstract: 992,856. Receptacles for growing plants. NIPPON TENSAI SEITO KABUSHIKI KAISHA. April 6, 1962 [July 31, 1961], No. 13307/62. Heading A1E. A plurality of sheets 1, Fig. 2, of porous antiseptic material, e.g. paper, folded and secured along two edges with water insoluble adhesive 2 e.g. vinyl acetate, forming flattened tubular compartments, are assembled together by pasting one to another by water soluble adhesive 3 e.g. gum arabic. The flattened compartments are secured so that each overlaps the one adjacent to it by substantially one third of its width. When the assembly is opened out it forms a honeycomb structure which may be filled with soil and used to raise seedlings, the water used therefor separating the structure into individual compartments ready for transplanting.
Patent GB-133112-A (GB)
IPC: B64B1/40
Abstract: 133,112. Marks, E. C. R., (Goodyear Tire & Rubber Co.). July 30, 1918. Aerostats.-A kite balloon comprising a gas chamber A and air ballonet B is provided at the tail with a funnel-shaped air inlet 24, 21 leading to the ballonet and fitted with a flap valve 28, Fig. 5. A fin 32 extends forwards from the sides of the funnel 21 and is maintained taut by aircups 34 connected to the fin 32 by cords 37 and serving to stabilize the balloon. Lateral fins 65<a> are provided. The valve 13 and ripping panel 17 are operated from the car by means of ropes 19, 18, and the valve 13 may be operated automatically by means of a connexion 14 to the ballonet diaphragm C. An escape valve 68, Fig. 9, is fitted to the ballonet and is automatically opened by air pressure acting within a bellows 66, the valve'being weighted at 70. The holding-cable 50 is connected by cables 48 to series of cables 45, 43 attached to a band 38 on the balloon. Cars, suspending. The car 52 is suspended from the band 38 by means of cables 43, 45 leading to rings 47, to which are attached pulleys 51 of running tackle 56 comprising also pulleys 53, from which the car is slung by cables 55. The cables from the tackles 56 at one side of the balloon pass down at 62 to the car, where they are looped upon cleats 59 and then pass up to the tackles 56 at the other side. By adjusting the cables at the cleats 59, the occupant may adjust the car both vertically and longitudinally. The cables 43 pass round separate bars 40, Fig. 8, held in the bight of the band 38.
Patent GB-696106-A (GB)
Title: Electrical automatic gear-changing apparatus
IPC: F16H61/02
Filed: 1951-06-05
Abstract: 696,106. Electromagnetic switches. FILOCAMO, A. June 5, 1951 [Nov. 9, 1950], No. 13343/51. Class 38 (v) [Also in Group XXIV] A selector switch for use in a change-speed gear (see Group XXIV) comprises an arm 48 freely mounted on a shaft 50 and carrying a contact 38 which bridges, in turn, pairs of contacts 40, 42, 44, 46. Spring loaded balls 86 maintain the arm in each contact position until it is moved by one_of a pair of stops_62, 64 on a member 52, a spring 66 between the member and the arm then imparting a snap action. The member 52 is rigidly connected to a shaft 50 carrying a spur wheel 54 engaging a rack 56 which is actuated by a solenoid against the action of a spring. A variable voltage generator supplies the solenoid with direct current the gradual increase (or decrease) of which causes a step-by-step motion of the switch.
Patent GB-133807-A (GB)
IPC: F01L13/04
Abstract: 133,807. Desmond, J. E. Nov. 5, 1918. Turning-gear.-The leve. 22 which controls a compressed-air starter can be actuated only when the ignition timing-mechanism is set to retard the spark. The lever 22 is normally locked by the head of a plunger 30, Fig. 6, which is moved axially against a spring 32 by a cam 35 on a rockshaft 33 actuated by a handle 34 and forming part of the timing-mechanism. The starting- lever 22 actuates a valve 13, Fig. 2, which controls the air supply to a compressed-air engine. The valve is normally held on its seat by a spring 14 and is actuated through a sleeve 12 engaged by a plate 20 on the shaft of the lever 22. The valve casing has an inlet port 4 connected to an air pump, ports 5, 6 connected to an airstorage tank and to the compressed-air engine, and an exhaust port 7. The sleeve 12 has an annular recess 19 which connects the ports 5, 6 when the valve 13 is unseated. On releasing the lever 22, the valve 13 closes and the sleeve 12 is forced by air pressure to the position shown in broken lines in Fig. 2, allowing the compressed air to escape through the sleeve 12 and the exhaust port 7. The inlet port 4 from the air pump is fitted with a non-return valve 9 cushioned bv a dash-pot 24 and a yielding disk 26 with notches 28 for the passage of air. The stem of the valve 13 is slidable in a bearing 16 and may have flattened sides to allow an escape of air to a cock 18 and a pipe for inflating tyres &c.
Patent GB-133867-A (GB)
IPC: A47K3/18
Abstract: 133,867. Jackson, J. M. Jan. 18, 1919. Baths fitted with lavatory basins. - A slab 2 integral with a bath 1 supports a lavatory basin 4.
Patent GB-237874-A (GB)
Title: Improved grab for unloading ships and the like
IPC: B66C3/02
Filed: 1925-05-22
Abstract: 237,874. Voorwinde, W. Aug. 4, 1924, [Convention date]. Grab-buckets for unloading ships' holds are provided with a removable or adjustable scraper 14 for drawing the material from the sides of the hold to the area beneath the hatch where the grab-bucket can operate. As shown, the scraper, Fig. 4, consists of a U-shaped frame adjustable in brackets 15 on the bucket member 2. When the scraper is in the extended position shown in full lines, the open grab rests on the bottom of the hold with the arm 12 horizontal, and on closing the grab the scraper moves along the floor and draws the material beneath the grab. The scraper can then be withdrawn to the position shown in broken lines and the grab operated in the usual manner to remove the material. For handling ores and similar heavy materials, a removable scraper 14, Fig. 5, mounted on braced supports 18 is attached temporarily to the grabbucket at 21, 22. The grab may be anchored during the scraping operation by a wire cable attached to the bucket member 1.
Patent GB-821997-A (GB)
Title: Improvements in or relating to preparations for combating red spider mites
IPC: A01N41/10
Filed: 1958-04-28
Abstract: A preparation for combating red spider mites comprises 2,4,41-trichloro-diphenylsulphone and an inert solid carrier or an inert liquid carrier material in the form of an emulsion or dispersion, if desired, surface-active substances, dispersing agents and/or adhesives being included.  The preparation may be in the form of a wettable powder produced by mixing the active component with a solid inert carrier, e.g. alumina, diatomaceous earth, kaolin, dolomite, talcum, gypsum, chalk, bentonite, attapulgite, infusorial earth, celite, wood flour, tobacco dust or ground coconut shells or as a dustible powder by applying the active composition alone or in solution to the carrier or as a mixable oil by dissolving the active component in a solvent, e.g. xylene, toluene, dioxane, petroleum distillates rich in aromatic compounds, for instance: solvent naphtha, distilled tar oil, tetraline, cyclohexane, or mixtures thereof and adding an emulsifier.  As a fumigating agent the active ingredient is mixed with flour of a tropical wood, which, when the composition burns, produces such a porous skeleton that the active compound can escape unhindered during the combustion process and particularly flour of wood of Santalum Album and/or of Osyris Tenuifolia, if desired with a different wood flour and with a finely-divided nitrate, preferably ammonium nitrate.  Specification 761,837 is referred to.
Patent GB-530246-A (GB)
Title: Improvements in or relating to molding apparatus
IPC: B29C48/09
Filed: 1939-05-04
Abstract: 530,246. Extruding latex. FIRESTONE TYRE & RUBBER CO., Ltd. (Morris, H. B.). May 4, 1939, No. 13410. Convention date, May 19, 1938. Addition to 528,909. [Class 87 (ii)] In the moulding-apparatus of the parent Specification the mandrel is formed with a bore and has heating means arranged therein only in that portion substantially in the zone of the housing to which heat is applied, so that the heat is applied to both surfaces of the latex passing between the housing and mandrel in a localized portion of these parts. The mould comprises a housing 22, Fig. 2, the inner wall of which is spaced from and concentric with a part 26 of a mandrel 25. The part 26 is hollow and contains an electric heating-element 36 adapted to heat the latex which is fed into the space between the part 26 and the inner wall of the housing. Two blocks 33, 39 are provided about the housing, the block 33 having a chamber 34 to receive heating fluid and the block 39 having a chamber 42 to receive cooling fluid. Several holes or recesses are provided in the bore of the mandrel part 26 to permit air to flow around the heating element 36. The mould may be mounted so that it can be adjusted angularly with respect to the horizontal and may be connected by a flexible conduit to a container for latex. Rubber tubing issuing from the mould may be received in a tank containing cooling water and then be led to a drum in which it collects.
Patent GB-636845-A (GB)
Title: Improvements in or relating to terminals for insulated electric conductors
IPC: H01R4/20
Filed: 1948-05-18
Abstract: 636,845. Wire terminals. ROMAC INDUSTRIES, Ltd., and FREEMAN, L. G. May 18, 1948, No. 13445. [Class 38 (i)] A terminal for an insulated conductor is formed by bending a blank into a tube slotted and necked at a and c respectively, at one end, to form a resilient portion which may be sprung over a spherical binding post to engage the neck thereof. The other end is slit transversely at e to form circumferentially-extending tongues f whose ends are bent at right angles to form spikes directed towards the resilient portion and adapted to be forced into the conductor insulation. A pointed tongue d extends from the centre of the tube towards the tongues f and penetrates the conductor core as the latter is inserted into the terminal, the spikes being bent clear of the bore to permit this insertion before being forced into the insulation. Fig. 7 shows a modification wherein the terminal is divided centrally and the ends of the two parts compressed on to an insulating tube k containing a suppressor resistance m supported by springs n and cross-pins o which pass through the two terminal parts. Tapered spikes punched from the tube and directed towards the resilient end may replace the tongues f.
Patent GB-1081747-A (GB)
Title: Tracer shotgun cartridge
IPC: F42B12/38
Filed: 1965-03-30
Abstract: 1,081,747. Shot cartridges. OLIN MATHIE. SON CHEMICAL CORPORATION. March 30, 1965 [May 29, 1964], No. 13473/65. Heading F3A. A shot cartridge containing a tracer charge has a casing 2 of plastics or paper and a metal head 3 housing a primer 5. A basewad 6 which may be integral with the casing underlies a propellent charge 7 above which is a cup-shaped wad 8 surmounted by an annular wad 9 underlying the shot charge 15. A spherical body 11 closing the wad 9 has a stem 18 extending into the wad 9. Stem 18 is recessed to house a pyrotechnic charge 14 which is ignited by charge 7 when the cartridge is fired. A sleeve 16 of resilient material surrounds the shot. A frangible wad (not shown in Fig. 1) may surround the sphere 11. This wad may be made of rigid or elastic foamed plastics such as styrene, urethane or epoxy resins. In a modification the stem 18 is omitted and the pyrotechnic charge is housed in the sphere. The shot sleeve, undershot wad and overpowder wad may be formed as a single unit of which the sleeve part has longitudinal slots.
Patent GB-134868-A (GB)
IPC: F25C1/20
Abstract: 134,868. Ryder, F., and Pluperfect Refrigeration Co. Sept. 3, 1918. Straight-tube apparatus.-Relates to refrigerating-apparatus of the type described in Specification 115,055, and consists in the adaptation, as ice-forming surfaces, of pairs of pipes of D-section placed back to back, or of single pipes having a mid-feather, the pipes being closed at their upper ends to obtain an up-and-down circulation of the refrigerant. In the form shown in Figs. 2, 3, the pipes 4 are screwed into, and entirely fill the passage in, the header 1 below the freezing-tank 14, and are closed bv plugs 7 which abut against the mid-feather 5. Ports 6 in the tubes provide an up-and-down flow of the refrigerant. Figs. 1-1<d> show various forms of the upper part of the tubes. As shown in Fig. 5, the tubes may be secured to the header bv brazing or welding, instead of by screwing, and may either abut on the bottom, or protrude and be closed by a cap or cap 9<a>. In another modification, the pipes are secured to the top of the header by flanged joints, the mid-feather extending to the bottom of the header.